如何修復(fù)服務(wù)區(qū)的損壞模塊？
From time to time we get the questions from our customers, especially from the beginners: how to fix the bad modules in Service Area?

例如，可以使用PC-3000命令來修復(fù)某些模塊，例如翻譯器再生。但是，如果驅(qū)動器在SA中出現(xiàn)壞扇區(qū)，該怎么辦？還有一些重要的模塊讀取錯誤？
Some modules can be fixed using the PC-3000 commands like translator regeneration, for example. But what to do if the drive has the bad sectors in SA, and some important module can not read good? Let’s discuss it in this article.

我們最近的硬盤數(shù)據(jù)恢復(fù)工作中遇到一個日立IBM-ARM硬盤。它以獲取完整ID并能訪問SA，但是由于P-List模塊兩個副本都損壞，所以不能訪問用戶區(qū)：
We have got the Hitachi IBM-ARM drive recently. It started with full ID and SA access, but without the User Area acccess because the P-List module was damaged by both copies:

每個硬盤的PSHT模塊都是不一樣的，并且它不能使用其他模塊來恢復(fù)。
The PSHT is a unique for each HDD, and it can not be restored using another modules.

我們必須嘗試忽略諸讀取錯誤。為此，我們按Select data? 按鈕：
We must try to read it with error ignoring. To do that we press the Select data?button:

并將標(biāo)記設(shè)置為? Ignore reading error?復(fù)選框，然后按OK：
and set the mark into the?Ignore reading error checkbox and press OK:

并等待一段時間，直到驅(qū)動器讀取此模塊的所有扇區(qū)
and wait for some time until the drive reads all sectors of this module.

我們很幸運(yùn)：我們的PSHT沒有完全損壞：
We were lucky: our PSHT is not fully damaged:

現(xiàn)在我們必須搜索里面損壞的區(qū)域。我們按 binoculars ?按鈕：
and now we must search for bad area inside. We press the binoculars button:

并在Data example選項(xiàng)卡中搜索DE AD字符串：
and search for DE AD string in Data example tab:

我們在PSHT模塊中發(fā)現(xiàn)了512個損壞的區(qū)域：
We’ve found some bad area in PSHT module with 512 size:

將損壞的PSHT通過copy 0 保存在單獨(dú)的文件中：
Save the bad PSHT by copy 0 in separate file:

我們?yōu)?em>PSHT copy 1 做同樣的操作。
We doing the same actions for PSHT copy 1.

現(xiàn)在我們打開我們以前保存的PSHT copy ?0。我們已經(jīng)發(fā)現(xiàn)DE AD在偏移0x28400中。如果我們在PSHT的 copy ?1中打開相同的偏移量，我們可以看到在該扇區(qū)中沒有DE AD
Now we open the PSHT copy 0 we have saved before.?We have found the DE AD sygnature in offset 0x28400. If we open the same offset in copy 1 of PSHT, we can see that there is no DE AD in this sector

所以我們按照 copy 1填寫?DE AD 區(qū)域，這兒我們使用00填充
so we fill the DE AD with 00 like it presented in copy 1.

然后在模塊中搜索其它的DE AD。
and then search for more DE AD in module.

在下一個偏移量0x72400中，我們看到有數(shù)據(jù)，所以我們不能用零填充它，我們必須從相同偏移量的好copy 1部分復(fù)制相同的扇區(qū)，并將其粘貼并替換現(xiàn)有數(shù)據(jù)的copy 0模塊中。
In next offset 0x72400 we see the data, so we can not just fill it with zeroes, we must copy the same sector from good copy 1 part in same offset, and paste it into the copy 0 module with replace existing data.

Was:

become:

我們已經(jīng)完成了PSHT的修復(fù)， ?并將PSHT模塊??保存為PSHT-0_bad.bin文件。如果PSHT的 copy ?0或者 copy ?1的磁頭和盤片很好，我們可以將好的模塊寫入SA，然后重啟驅(qū)動器并讀取數(shù)據(jù)。
We have finished the restoring of PSHT,?and??saved the good PSHT module in one file PSHT-0_bad.bin. If the heads and surface under the copy 0 or 1 of PSHT are good, we can write the good module into the SA, then just restart the drive and read the data.

但是在我們這個例子中，我們在PSHT中存在硬盤扇區(qū)不好的地方，所以我們不能從備份中寫入模塊。我們必須使用IBM-ARM實(shí)用程序的特殊功能初始化翻譯器：將PSHT上傳到HDD RAM中。
But in our case we have the physically bad sectors in PSHT, so we can not just write the module from backup. We must initialize the translator using the special feature of IBM-ARM utility: the uploading of PSHT into the HDD RAM.

上傳PSHT到RAM中之后，盡管PSHT由服務(wù)區(qū)兩個副本損壞，但我們可以讀取所有LBA：
After PSHT uploading into the RAM we can see all LBA despite the PSHT is damaged by both copies in Service Area:

這時我們現(xiàn)在可以讀取我們驅(qū)動器上的所有數(shù)據(jù)
That’s all, we can now?read all the data from our drive.

轉(zhuǎn)載請注明：成都千喜數(shù)據(jù)恢復(fù)中心 » 如果我們固件的兩個副本都損壞，如何修復(fù)SA模塊。